traccar/traccar

Traccar GPS Tracking System

AutoMQ/automq

AutoMQ is a diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.

langchain4j/langchain4j

LangChain4j is an open-source Java library that simplifies the integration of LLMs into Java applications through a unified API, providing access to popular LLMs and vector databases. It makes implementing RAG, tool calling (including support for MCP), and agents easy. LangChain4j integrates seamlessly with various enterprise Java frameworks.

alibaba/spring-cloud-alibaba

Spring Cloud Alibaba provides a one-stop solution for application development for the distributed solutions of Alibaba middleware.

redisson/redisson

Redisson - Valkey & Redis Java client. Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache..

openmrs/openmrs-core

OpenMRS API and web application code

apache/paimon

Apache Paimon is a lake format that enables building a Realtime Lakehouse Architecture with Flink and Spark for both streaming and batch operations.

openjdk/jdk

JDK main-line development https://openjdk.org/projects/jdk

bazelbuild/bazel

a fast, scalable, multi-language and extensible build system

StarRocks/starrocks

The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.

mybatis/mybatis-3

MyBatis SQL mapper framework for Java

CaffeineMC/sodium

A Minecraft mod designed to improve frame rates and reduce micro-stutter

ashishps1/awesome-system-design-resources

Learn System Design concepts and prepare for interviews using free resources.

gyoogle/tech-interview-for-developer

👶🏻 신입 개발자 전공 지식 & 기술 면접 백과사전 📖

zaproxy/zaproxy

The ZAP by Checkmarx Core project

YunaiV/yudao-cloud

ruoyi-vue-pro 全新 Cloud 版本，优化重构所有功能。基于 Spring Cloud Alibaba + MyBatis Plus + Vue & Element 实现的后台管理系统 + 用户小程序，支持 RBAC 动态权限、多租户、数据权限、工作流、三方登录、支付、短信、商城、CRM、ERP、AI 大模型等功能。你的 ⭐️ Star ⭐️，是作者生发的动力！

opensearch-project/OpenSearch

🔎 Open source distributed and RESTful search engine.

kunal-kushwaha/DSA-Bootcamp-Java

This repository consists of the code samples, assignments, and notes for the Java data structures & algorithms + interview preparation bootcamp of WeMakeDevs.

google/private-compute-services

netty/netty

Netty project - an event-driven asynchronous network application framework

gsantner/markor

Text editor - Notes & ToDo (for Android) - Markdown, todo.txt, plaintext, math, ..